Face it. There are all kinds of innovations but the most difficult -- by far -- is the redesign of your business model. In IN3, the third edition of Inside Innovation, we show just how hard it is to create a new, customer-centric, globally competitive business culture. We analyze mistakes Kodak (EK

) made on the road to innovation and how it's trying to do with images what Apple (AAPL

) has done with music. We also take a look at the successful redesign of Electrolux's business model. And check out the stories on what it really takes to do business in Second Life (all hype aside), the hot new motorcycle powered by a hydrogen fuel cell, and the latest in outsourcing to India. Keep in touch by linking to our online Innovation & Design site (businessweek.com/innovate). By Bruce Nussbaum, Editor